Sound crashes xemacs-21.2.29

In XEmacs 21.2 (beta29) "Hestia" [Lucid] (ppc-unknown-linux) of Mon Feb 21 2000 on chezmoi configured using `configure --prefix=/usr --package-path=/var/tmp/xemacs-root/usr/lib/xemacs/xemacs-packages --debug=no --error-checking=none --with-pop --mail-locking=flock --with-mule=no --dynamic=yes --lockdir=/var/lock/xemacs' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: Any keystroke that should cause a sound, for example going back at the beginning of the buffer, or a simple C-g, crashes xemacs. The bug goes away if the (load-default-sounds) section from the .xemacs sample file is disabled. Screen message: Fatal error: assertion failed, file /usr/src/redhat/BUILD/xemacs-21.2.29/src/signal.c, line 340, async_timer_suppress_count > 0 Lisp backtrace follows: ding(nil buffer-bound) # bind (inhibit-quit debug-on-error etype error-object) command-error((beginning-of-buffer)) # (catch top-level ...) gdb backtrace: (gdb) bt #0 0xf0ad9c in kill () at soinit.c:59 #1 0x1835ca8 in fatal_error_signal () #2 <signal handler called> #3 0xf0ad9c in kill () at soinit.c:59 #4 0xf0c2fc in abort () at ../sysdeps/generic/abort.c:139 #5 0x18382e8 in syms_of_emacs () #6 0x18f9dbc in alarm () #7 0x107de94 in esd_open_sound () from /usr/lib/libesd.so.0 #8 0x107e084 in esd_play_stream () from /usr/lib/libesd.so.0 #9 0x1858f7c in esd_play_sound_data () #10 0x18faed8 in Fplay_sound () #11 0x18fb190 in Fding () #12 0x183e8c4 in Ffuncall () #13 0x1815780 in execute_optimized_program () #14 0x18152f0 in funcall_compiled_function () #15 0x183ea50 in Ffuncall () #16 0x183fc60 in call1 () #17 0x181dbd4 in cmd_error () #18 0x183b338 in condition_case_1 () #19 0x181dcdc in command_loop_3 () #20 0x181dcfc in command_loop_2 () #21 0x183ae70 in internal_catch () #22 0x181df00 in initial_command_loop () #23 0x1837008 in sort_args () #24 0x1837948 in voodoo_free_hook () #25 0xf0369c in __libc_start_main () at ../sysdeps/powerpc/elf/libc-start.c:106 #26 0x0 in ?? () -- Martin